## A quotation by John William Strutt

Some proofs command assent. Others woo and charm the intellect. They evoke delight and an overpowering desire to say, "Amen, Amen".

Quoted in H E Hunter

*The Divine Proportion*(New York 1970)

Examples ... which might be multiplied

*ad libitum*, show how difficult it often is for an experimenter to interpret his results without the aid of mathematics.

Quoted in E T Bell

*Men of Mathematics*